Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Patent
1988-07-01
1990-12-04
Spruill, Robert L.
Metal deforming
By use of closed-die and coacting work-forcer
Forcing work into or within closed die; e.g., forging
72346, 72426, 414751, B21D 4318
Patent
active
049744399
ABSTRACT:
Apparatus which eliminates mechanically-moving parts for clasping or releasing a sheet metal can body for moving a can body from a forming station and, which reduces the number of moving parts as well as the type of movements required by such transfer apparatus to enable sheet metal can bodies to be transferred rapidly, in synchronism with movements of tooling in a forming press without damage to sheet metal or coating while controlling orientation and stability of the can body. A shuttle-arm oscillates in the longitudinal direction of the can line, into and out of the area of the press tooling to transfer a can body for continued movement in the line; such shuttle arm moves at a rate which does not obstruct any movement of the forming tooling or the operating rate of the press. A formed can body is attracted to and physically held at the leading end of the shuttle arm in desired orientation without mechanical movement clamping of any type by a stacked array of permanent magnets and flux path bars. Movement of the shuttle arm longitudinally in relation to a wiper-arm separates the can body at a desired location without requiring separate mechanical moving parts. Such flux path bars present a surface which matches a portion of the contour of the can body. A rigid-holding capability, with desired stability and orientation are provided.
REFERENCES:
patent: 3087629 (1963-04-01), Sharpe
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patent: 4566306 (1986-01-01), Orii
patent: 4589819 (1986-05-01), Shirao
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patent: 4732031 (1988-03-01), Bulso et al.
patent: 4784562 (1988-11-01), Kishi et al.
Applegate Robert L.
Saunders William T.
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